The phrase "a sufficient length" is correct and usable in written English.
It can be used when discussing the adequacy of the length of something, such as a document, essay, or physical object.
Example: "The report must be of a sufficient length to cover all necessary details without being overly verbose."
Alternatives: "an adequate length" or "a proper length".
In both cases, the appropriate audience for the testing of claims is universal, and in making a truth or rightness claim one counterfactually presupposes that a universal consensus would result, were the participants able to pursue a sufficiently inclusive and reasonable discourse for a sufficient length of time.
There is something numinous about any human document that survives a sufficient length of time.
Is five hundred words a sufficient length for a college-application essay?
After our concoction had been in the oven for what seemed a sufficient length of time, we took it out, set it on the table, and dug in.
So far, we have been able to efficiently clone bacterial genomic sequences of up to 100 kb, a sufficient length for most known bacterial gene clusters.
It has to do with the number of days you take to shoot it, and you can't make a film as well as it can be made without having a sufficient length of time to make it.
The most important step in pouring a new sidewalk or any concrete surface is to keep the surface moist for a sufficient length of time -- generally, about a week -- to allow the entire slab to cure evenly.
We should be prepared to enjoy our good luck, and drop dead after a sufficient length of time – but ask, along the way, what we actually wish to do with our time.
The paper demonstrates how, over a sufficient length of time, observations from the monitored scene itself can be used to parameterize the semantic landscape.
Therefore to achieve a sufficient length of operational time inside future fusion power plants, a suitable radiation tolerant RHE for maintenance operations in radiation environments is inevitably required.
"If the water level falls below the base of the tree for a sufficient length of time, and you put water back in the stand, it's not going to take up water," he said.
